update: system update & refactor

# Breaking Changes
- sops location movod to "system/dev/<dev-name>/sops/sops-conf.nix"
- flake devices declaration changes
- whole flake update

system/dev/dn-pre7780/utility/airplay.nix

@@ -0,0 +1,5 @@
+{
+  imports = [
+    (import ../../../modules/airplay.nix { hostname = "pre7780"; })
+  ];
+}

system/dev/dn-pre7780/utility/blender.nix

@@ -0,0 +1,11 @@
+{ pkgs, ... }:
+{
+  environment.systemPackages = with pkgs; [
+    rustdesk
+    ((blender.override { cudaSupport = true; }).overrideAttrs (prev: {
+      postInstall = ''
+        sed -i 's|Exec=blender %f|Exec=/run/current-system/sw/bin/nvidia-offload blender %f|' $out/share/applications/blender.desktop
+      '';
+    }))
+  ];
+}

system/dev/dn-pre7780/utility/davinci-resolve.nix

@@ -0,0 +1,5 @@
+{
+  imports = [
+    ../../../modules/davinci-resolve.nix
+  ];
+}

system/dev/dn-pre7780/utility/default.nix

@@ -0,0 +1,8 @@
+{
+  imports = [
+    ../../../modules/localsend.nix
+    ./airplay.nix
+    ./davinci-resolve.nix
+    ./blender.nix
+  ];
+}